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<?php
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/**
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* @category Core
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* @package Core_security
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* @author Werner v.d.Decken
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* @copyright ISTeasy-project(http://isteasy.de/)
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* @license Creative Commons BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/
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* @version $Id: ModLanguage.php 1680 2012-05-02 22:17:37Z darkviper $
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* @filesource $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/ModLanguage.php $
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* @since Datei vorhanden seit Release 2.8.2
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* @lastmodified $Date: 2012-05-03 00:17:37 +0200 (Thu, 03 May 2012) $
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*/
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class ModLanguage {
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private $_sCurrentLanguage = '';
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private $_sDefaultLanguage = '';
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private $_sLanguageDirectory = '';
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private $_sLanguageFile = '';
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private $_LanguageTable = array();
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private $_bLoaded = false;
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private static $_oInstance = null;
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/* prevent from public instancing */
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protected function __construct() { }
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/* prevent from cloning */
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private function __clone() {}
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/**
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* get a valid instance of this class
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* @return object
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*/
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public function getInstance() {
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if( is_null(self::$_oInstance) ) {
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$c = __CLASS__;
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self::$_oInstance = new $c;
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}
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return self::$_oInstance;
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}
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/**
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* set language and load needed language file
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* @param string $sDirectory full path to the language files
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* @param string $sLanguage 2-letters language code
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* @param string $sDefault 2-letters default-language code
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*/
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public function setLanguage($sDirectory, $sLanguage, $sDefault = 'EN')
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{
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$sBasePath = realpath(dirname(dirname(__FILE__)));
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$sLangDir = realpath($sDirectory);
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if(!preg_match('/^'.preg_quote($sBasePath, '/').'/', $sLangDir)) {
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throw new SecDirectoryTraversalException();
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}
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$sLangDir = str_replace('\\', '/', $sLangDir);
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$sLangDir = rtrim($sLangDir, '/').'/';
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$sLanguage = strtoupper($sLanguage);
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$sLanguage = strtoupper($sDefault);
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if($this->_sLanguageDirectory != $sLangDir ||
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$this->_sCurrentLanguage != $sLanguage ||
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$this->_sDefaultLanguage != $sDefault)
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{
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$this->_sLanguageDirectory = rtrim($sLangDir, '/').'/';
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$this->_sCurrentLanguage = $sLanguage;
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$this->_sDefaultLanguage = $sDefault;
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if(!$this->_findLanguageFile()) {
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$msg = 'unable to find valid language definition file in<br />';
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$msg .= '"'.str_replace($sBasePath, '', $this->_sLanguageDirectory).'"';
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throw new TranslationException($msg);
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}
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$this->_importArrays();
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}
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$this->_bLoaded = (sizeof($this->_LanguageTable) > 0);
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}
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/**
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* return requested translation for a key
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* @param string $sLanguageKey 2-uppercase letters language code
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* @return string found translation or empty string
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*/
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public function __get($sLanguageKey)
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{
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$sRetval = (isset($this->_LanguageTable[$sLanguageKey])
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? $this->_LanguageTable[$sLanguageKey] : '{missing: '.$sLanguageKey.'}');
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return $sRetval;
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}
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/**
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* returns the whoole language array for use in templateengine
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* @return array
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*/
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public function getLangArray()
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{
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return $this->_LanguageTable;
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}
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/**
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* search language file in order: LANGUAGE - DEFAULT_LANGUAGE - FIRST_FOUND
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* @return boolean
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*/
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private function _findLanguageFile()
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{
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$bMatch = false;
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$dir = $this->_sLanguageDirectory;
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if(is_readable($dir.$this->_sCurrentLanguage.'.php')) {
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// check actual language
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$this->_sLanguageFile = $dir.$this->_sCurrentLanguage.'.php';
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$bMatch = true;
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}else {
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if(is_readable($dir.$this->_sDefaultLanguage.'.php')) {
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// check default language
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$this->_sLanguageFile = $dir.$this->_sDefaultLanguage.'.php';
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$bMatch = true;
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}else {
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// search for first available and readable language file
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if(is_readable($dir)) {
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$iterator = new DirectoryIterator($dir);
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foreach ($iterator as $fileinfo) {
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if(!preg_match('/^[A-Z]{2}\.php$/', $fileinfo->getBasename())) { continue; }
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$sLanguageFile = str_replace('\\', '/', $fileinfo->getPathname());
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if(is_readable($sLanguageFile)) {
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$this->_sLanguageFile = $sLanguageFile;
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$bMatch = true;
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break;
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}
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}
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}
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}
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}
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return $bMatch;
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}
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/**
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* import key-values from language file
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*/
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private function _importArrays()
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{
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include($this->_sLanguageFile);
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$aLangSections = array('HEADING', 'TEXT', 'MESSAGE', 'MENU', 'OVERVIEW', 'GENERIC');
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foreach($aLangSections as $sSection) {
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if(isset(${$sSection}) && is_array(${$sSection})) {
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foreach(${$sSection} as $key => $value) {
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$this->_LanguageTable[$sSection.'_'.$key] = $value;
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}
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}
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}
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}
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} // end class Translate
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/**
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* Exception class for Translation
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*/
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class TranslationException extends AppException {}
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